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R600/SI: Remove incorrect assertion

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This can be a COPY to a physical register, such as VCC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@223207 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Matt Arsenault 2014-12-03 05:22:38 +00:00
parent ec0a7cd15a
commit 5c2d295d86
1 changed files with 5 additions and 5 deletions
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10
lib/Target/R600/SIFixSGPRCopies.cpp
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@ -136,12 +136,12 @@ const TargetRegisterClass *SIFixSGPRCopies::inferRegClassFromUses(
const MachineRegisterInfo &MRI,
unsigned Reg,
unsigned SubReg) const {
// The Reg parameter to the function must always be defined by either a PHI
// or a COPY, therefore it cannot be a physical register.
assert(TargetRegisterInfo::isVirtualRegister(Reg) &&
"Reg cannot be a physical register");
const TargetRegisterClass *RC = MRI.getRegClass(Reg);
const TargetRegisterClass *RC
= TargetRegisterInfo::isVirtualRegister(Reg) ?
MRI.getRegClass(Reg) :
TRI->getRegClass(Reg);
RC = TRI->getSubRegClass(RC, SubReg);
for (MachineRegisterInfo::use_instr_iterator
I = MRI.use_instr_begin(Reg), E = MRI.use_instr_end(); I != E; ++I) {